First thing I did, so you don't have to, is weigh the little fellas to compare the old and new weight, lets see what were taking off here.
Taking the ZX5 apart was an anarchic display, everytime I saw a screw I just went at it, you've never seen a car reduced to pile of bits so fast.
The Ti Screw kit does'nt replace the tiny screws in the front one-way or the wishbone hinge pin holders so i left those out. Everything else went in.
On the scales, the original steel screws weighed in at 57g, (2.01 oz). |
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Steel screws cast aside and Speed Techs Ti Screw Set on the scales revealed a weight of 29g, (1.02 oz). Just barely over Half the weight of the Steel screws. (Actually 26g / 0.92oz as I explain later)
Thats a saving of 28g on the race-ready car I ran, (1637g), so even before assembly I can assume a weight of around 1609g ready to race.
With my chassis back from being lent out I set about rebuilding the ZX5 with the new screws. It was a much nicer experience building the lazer with the Hex screws since there is no downwards force needed on the driver (check the photo below right).
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The top shock mount screws (pictured on the left) are very slightly shorter than the original screws, the threads dont quite reach then end of the plastic nuts but there seemed a good hold and it didnt concern me at all.
From personal experience and speaking to Steve at Speed Tech R/C, its not always advisable to run Ti Screws in the top shock mount as they are more easily damaged in a crash, steel ones are generally better in this area, on the zx5 this probably only really applies to the front since the rear screws are protected by the wing, but I will be running them anyway, all round, to see how they hold up.
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With the car all back together I had a few screws left over, more than I thought I'd have, but I am not running anti-roll (sway) bars, stick pack holders, front shell mounts etc. Since I only weighed the steel screws that I took off the car, the Ti Screws are actually 3g lighter than I stated above at 26g (0.92oz) compared to the same screws in steel ( 57g / 2.01 oz ). So Theoretically this ZX-5 should be a running weight around 1606g.
To put it simply, the screws took 31g (1.09oz) off the car.
There is little more to say about the screws, they look nice, reduce weight, are easier to work on, and are a great upgrade for the ZX-5 at an affordable price. If you already have a ZX5 or are purchasing one in the near future I would definately recomend these as first on the list of upgrades. |
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